This function checks the availability of a specific toolbox on the installed MATLAB on your machine.
The inputs to the function include:
1- the name of the specific toolbox as a string: 'Image Processing Toolbox'
2- the action you want the function take including {'warning', 'error'} . This input is optional.
The output of the function is 1 if the toolbox is installed on your machine and 0 otherwise.
Check out the following example:

>> result = isToolboxAvailable('Image Processing Toolbox','error')
>>
>> result =
>> 1